int64_t copy_fd_to_stream(int fd, FILE *output)
{
int64_t total = 0;
while(1) {
char buffer[COPY_BUFFER_SIZE];
int64_t actual_read = full_read(fd, buffer, sizeof(buffer));
if(actual_read <= 0) {
if(total == 0)
return -1;
else
break;
}
int64_t actual_write = full_fwrite(output, buffer, actual_read);
if(actual_write == -1) {
if(total == 0)
return -1;
else
break;
}
total += actual_write;
}
return total;
}
INT64_T link_stream_to_file(struct link * link, FILE * file, INT64_T length, time_t stoptime)
{
char buffer[65536];
INT64_T total = 0;
INT64_T ractual, wactual;
while(length > 0) {
INT64_T chunk = MIN(sizeof(buffer), length);
ractual = link_read(link, buffer, chunk, stoptime);
if(ractual <= 0)
break;
wactual = full_fwrite(file, buffer, ractual);
if(wactual != ractual) {
total = -1;
break;
}
total += ractual;
length -= ractual;
}
return total;
}
int64_t link_stream_to_file(struct link * link, FILE * file, int64_t length, time_t stoptime)
{
int64_t total = 0;
while(length > 0) {
char buffer[1<<16];
size_t chunk = MIN(sizeof(buffer), (size_t)length);
ssize_t ractual = link_read(link, buffer, chunk, stoptime);
if(ractual <= 0)
break;
ssize_t wactual = full_fwrite(file, buffer, ractual);
if(wactual != ractual) {
total = -1;
break;
}
total += ractual;
length -= ractual;
}
return total;
}
